fechter wrote:I just watched the video.
That's insane! You must go through tires fast.
Time for the Fechter adjustable current limit mod....
The instrument overlay on the video is fantastic.
There's another item for the wish list.
Drunkskunk wrote:Looks like a nice unit. How far past 80V can it handle? my packs have a resting voltage of 85V.
Great video!! super quality as well, some amazing figures on there 4KW 80A! fantastic stuff, how warm was he motor getting? they should be ok for that kind of power as Lowell has been running similar levels on his rig.
I would be interested to know the kind of speed you are getting, you could most definitely do with a current limiter or a current adjustable throttle, I use a limiter on mine and it works like a charm, I noticed a lot of high pitch whine from the motor? was the apparent or just the mic on the camera, you could fit a line reactor in series with the phase wires of it got too noisy, although it would burn up a few watts.
Fantastic video though, would love to see the speed displayed something I was going to do and never did! I fear that kind of power would be way too much for the Puma but it doesn't need it, at 72V 35A I cant stop the wheel spinning! and you will go through tyres, even at 37V the little BMX eats them and sometimes you develop so much power the rim spins inside the tyre! I have had that happen, it destroys the beading and you get an instant pinch flat.
Would love to see more videos though, those packs are amazing, did you get Bob Mcree to modify the controller for you? how are the drop outs looking with all that power?
The nice thing about a current limiter will be being able to turn the power down if you get stopped! ha ha, I have a feeling you may get one or 2 looks!!
Thanks for sharing
Ypedal wrote:Video quote " Whoa " lol... Damn.. now look what you've done... i need me one of those !
That much power on the front of a folder.. ?
Do the amps ramp up smoothly if you apply throttle slowly or does it jump suddenly ?
Great job G ! keep up the good work !
vanilla ice wrote:A special hv ebike version, that would be nice of them. Not that I'd need the hv version. But that thing is very compact. I want one.
Drunkskunk wrote:Well, as soon as there is one avalable that can handle atleast 85 volts, they have one sold
solarbbq2003 wrote:new x5 has 24magnets, not sure if that equates to 12 poles?? Might have to check if the magnets have multiple poles built into them, I haven't ever thought to check that
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